CREATE INDEX gives: ERROR: pgvecto.rs: The index is already existing in the background worker. about pgvecto.rs HOT 5 CLOSED

# Do not edit this file manually!
# It will be overwritten by the ALTER SYSTEM command.
shared_preload_libraries = 'vectors.so'
search_path = '"$user", public, vectors'

postgres=# CREATE TABLE items (
                id int4 GENERATED ALWAYS AS IDENTITY,
                embedding vector(5) NOT NULL
            );
postgres=# insert into items (embedding) values ('[1,2,3,4,5]');
INSERT 0 1
postgres=# CREATE INDEX ON items USING vectors (embedding vector_cos_ops);
CREATE INDEX

postgres=# drop table items;
DROP TABLE
postgres=# CREATE UNLOGGED TABLE items (
                id int4 GENERATED ALWAYS AS IDENTITY,
                embedding vector(5) NOT NULL
            );
postgres=# insert into items (embedding) values ('[1,2,3,4,5]');
INSERT 0 1
postgres=# CREATE INDEX ON items USING vectors (embedding vector_cos_ops);
ERROR:  pgvecto.rs: The index is already existing in the background worker.